32-bit E15 parameter list

In 32-bit general register 1, DFSORT places the address of a parameter list that contains the record address and the user address constant. The list is two fullwords long and begins on a fullword boundary. The format of the parameter list is:

Table 1. 32-bit E15 User Exit Parameter List
32-bit E15 User Exit Parameter ListLocation	Contents
Bytes 1 through 4	Address of the new record
Bytes 5 through 8	User exit address constant

DFSORT provides a 72-byte Format 0 save area pointed to by 32-bit register 13 in which the exit can save the 32-bit registers.

Before returning control to DFSORT, you must:

Place the address of the record in 32-bit register 1.
Put the return code in 32-bit register 15.